Browsing by Author "Liski, J."

Now showing items 1-6 of 6

    • Leaf litter decomposition-Estimates of global variability based on Yasso07 model 

      Tuomi, Mikko; Thum, T.; Järvinen, H.; Fronzek, S.; Berg, B.; Harmon, M.; Trofymow, J. A.; Sevanto, S.; Liski, J. (2009-12-10)
      Litter decomposition is an important process in the global carbon cycle. It accounts for most of the heterotrophic soil respiration and results in formation of more stable soil organic carbon (SOC) which is the largest ...

    • Molecular sieve sampling of CO2 from decomposition of soil organic matter for AMS radiocarbon measurements 

      Hämäläinen, K.; Fritze, H.; Jungner, H.; Karhu, K.; Oinonen, M.; Sonninen, E.; Spetz, P.; Tuomi, Mikko; Vanhala, P.; Liski, J. (2010-04-01)
      A molecular sieve based procedure has been established for sampling CO2 of decomposing soil organic matter for AMS radiocarbon measurements. The sampling and desorption lines are capable to produce well measurable (>1 mg) ...

    • Soil carbon model alternatives for ECHAM5/JSBACH climate model : Evaluation and impacts on global carbon cycle estimates 

      Thum, T.; Risnen, P.; Sevanto, S.; Tuomi, Mikko; Reick, C.; Vesala, T.; Raddatz, T.; Aalto, T.; Jrvinen, H.; Altimir, N.; Pilegaard, K.; Nagy, Z.; Rambal, S.; Liski, J. (2011-06-29)
      The response of soil organic carbon to climate change might lead to significant feedbacks affecting global warming. This response can be studied by coupled climate-carbon cycle models but so far the description of soil ...

    • Soil carbon model Yasso07 graphical user interface 

      Tuomi, Mikko; Rasinmäki, J.; Repo, A.; Vanhala, P.; Liski, J. (2011-11-01)
      In this article, we present a graphical user interface software for the litter decomposition and soil carbon model Yasso07 and an overview of the principles and formulae it is based on. The software can be used to test the ...

    • Temperature sensitivity of organic matter decomposition in two boreal forest soil profiles 

      Karhu, K.; Fritze, H.; Tuomi, Mikko; Vanhala, P.; Spetz, P.; Kitunen, V.; Liski, J. (2010-01-01)
      Controversial conclusions from different studies suggest that the decomposition of old soil organic matter (SOM) is either more, less, or equally temperature sensitive compared to the younger SOM. Based on chemical kinetic ...

    • Wood decomposition model for boreal forests 

      Tuomi, Mikko; Laiho, R.; Repo, A.; Liski, J. (2011-02-10)
      The decomposition of woody litter is a biochemical process, controlled by physical, chemical and biological environmental conditions. To develop a practicable model of this complex process, it is necessary to identify the ...